You may have encountered news regarding a security flaw affecting the processors of nearly every modern device. You can read this article for more information about this flaw.
At this point, there is not much that the MCAD ITS department can do to address this - we'll have to wait for the companies involved to release security patches. In the meantime, what you can do is keep your operating system up to date. Go ahead and update to MacOS 10.13 (High Sierra) from the Apple App Store, and when you get a chance, stop by the Help Desk to receive the new Spring 2018 MCAD Software Build.
Feel free to contact the Help Desk with any questions.
Your friends in the Help Desk